ripple

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ripple

1
1. a slight wave or undulation on the surface of water
2. Electronics an oscillation of small amplitude superimposed on a steady value

ripple

2
a special kind of comb designed to separate the seed from the stalks in flax, hemp, or broomcorn

ripple

[′rip·əl]
(electricity)
The alternating-current component in the output of a direct-current power supply, arising within the power supply from incomplete filtering or from commutator action in a dc generator.
(fluid mechanics)
(geology)
A very small ridge of sand resembling or suggesting a ripple of water and formed on the bedding surface of a sediment.
(oceanography)
A small curling or undulating wave controlled to a significant degree by both surface tension and gravity.